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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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TPS4333x-Q1 Fiches technique(PDF) 9 Page - Texas Instruments |
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TPS4333x-Q1 Fiches technique(HTML) 9 Page - Texas Instruments |
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9 / 48 page  TPS43330-Q1, TPS43332-Q1 www.ti.com SLVSA82F – MARCH 2011 – REVISED DECEMBER 2014 Electrical Characteristics (continued) VIN = 8 V to 18 V, TJ = –40°C to 150°C (unless otherwise noted) NO. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Boost-enable threshold Boost VOUT = 11 V, VBAT falling 11.5 12 12.5 4.6 Vboost11V-th Boost-disable threshold Boost VOUT = 11 V, VBAT rising 12 12.5 13 V Boost hysteresis Boost VOUT = 11 V, VBAT rising or falling 0.4 0.5 0.6 BOOST-SWITCH CURRENT LIMIT 4.7 VDS Current-limit sensing DS input with respect to PGNDA 0.175 0.2 0.225 V 4.8 tDS Leading-edge blanking 200 ns GATE DRIVER FOR BOOST CONTROLLER 4.9 IGC1 Peak Gate-driver peak current 1.5 A 4.10 rDS(on) Source and sink driver VREG = 5.8 V, IGC1 current = 200 mA 2 Ω GATE DRIVER FOR PMOS 4.11 rDS(on) PMOS OFF 10 20 Ω 4.12 IPMOS_ON Gate current VIN = 13.5 V, VGS = –5 V 10 mA 4.13 tdelay_ON Turnon delay C = 10 nF 5 10 µs BOOST-CONTROLLER SWITCHING FREQUENCY fSW_Buck 4.14 fsw-Boost Boost switching frequency kHz / 2 4.15 DBoost Boost duty cycle 90% ERROR AMPLIFIER (OTA) FOR BOOST CONVERTERS VBAT = 12 V 0.8 1.35 4.16 GmBOOST Forward transconductance mS VBAT = 5 V 0.35 0.65 5.0 BUCK CONTROLLERS VBuckA or Adjustable output-voltage 5.1 0.9 11 V VBuckB range Internal reference and Measure FBX pin 0.792 0.8 0.808 V 5.2 Vref, NRM tolerance voltage in normal –1% 1% mode Internal reference and Measure FBX pin 0.784 0.8 0.816 V 5.3 Vref, LPM tolerance voltage in low-power –2% 2% mode V sense for forward-current 5.4 FBx = 0.75 V (low duty cycle) 60 75 90 mV limit in CCM Vsense V sense for reverse-current 5.5 FBx = 1 V –65 –37.5 –23 mV limit in CCM 5.6 VI-Foldback V sense for output short FBx = 0 V 17 32.5 48 mV Shoot-through delay, blanking 5.7 tdead 20 ns time High-side minimum on-time 100 ns 5.8 DCNRM Maximum duty cycle (digitally 98.75% controlled) 5.9 DCLPM Duty cycle, LPM 80% LPM entry-threshold load ILPM_Entry current as fraction of 1% .See (3) maximum set load current 5.10 LPM exit-threshold load ILPM_Exit current as fraction of See (3) 10% maximum set load current HIGH-SIDE EXTERNAL NMOS GATE DRIVERS FOR BUCK CONTROLLER 5.11 IGX1_peak Gate-driver peak current 1.5 A 5.12 rDS(on) Source and sink driver VREG = 5.8 V, IGX1 current = 200 mA 2 Ω (3) The exit threshold specification is to be always higher than the entry threshold. Copyright © 2011–2014, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: TPS43330-Q1 TPS43332-Q1 |
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